**CUNY Graduate Center**

**Room 6417**

**Fridays 10:00am-12:00pm**

**Organized by Victoria Gitman and Kameryn Williams**

**Spring 2018**

**May 18**

**Miha Habič**
Charles University

**Tukey classes of complete ultrafilters**

**Abstract**

**May 11**

**Alfredo Roque Freire**
Universidade Estadual de Campinas

**On bi-interpretations in Set Theory that preserve isomorphism**

**Abstract**

**May 4**

**Jonas Reitz**
CUNY

**Cohen Forcing and Inner Models**

**Abstract**

**April 27**

**Joel David Hamkins**
CUNY

**Determinacy for open class games is preserved by forcing**

**Abstract**

**April 20**

**Michał Tomasz Godziszewski**
University of Warsaw

**Set-theoretic independence of existence of some local hidden variable models in the foundations of quantum mechanics**

**Abstract**

**April 13**

**Ryan Utke**
CUNY

**An Incompleteness in Peano Arithmetic**

**Abstract**

**April 6**

** Special time: 2:00-4:00pm**

**Special room: 6494**

**Kameryn Williams**
CUNY

**Dissertation defense: The Structure of Models of Second-order Set Theories**

**Abstract**

**March 30**

**Seminar cancelled**

Spring Break.

**March 23**

**Kaethe Minden**
Marlboro College

**Infinite Vatican Squares**

**Abstract**

**March 16**

**Shehzad Ahmed**
Ohio University

**When is pcf(A) well behaved?**

**Abstract**

**March 9**

**Brent Cody**
Virginia Commonwealth University

**The weakly compact reflection principle and orders of weak compactness Part II**

**Abstract**

**February 23**

**Shoshana Friedman**
CUNY

**Large cardinals and HOD**

**Abstract**

**February 16**

**Joseph Van Name**
CUNY

**Endomoprhic Laver tables**

**Abstract**

**February 9**

**Neil Barton**
Kurt Gödel Research Center

**Large cardinals and the iterative conception of set**

**Abstract**

**February 2**

**Seminar cancelled**

MathFest conference at the Graduate Center.